Home Postcode finder SA Swan Reach Swan Reach postcode SA Swan Reach is a locality in South Australia covered by postcode 5354. Postcode 5354 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Swan Reach business listing Be the first listing in Swan Reach Common questionsWhat is the postcode for Swan Reach?Swan Reach, SA has the postcode 5354.What state is Swan Reach in?Swan Reach is in South Australia (SA).Does postcode 5354 cover more than one suburb?Yes. Postcode 5354 covers 10 localities, so the postcode alone does not identify Swan Reach. Browse other postcodes in South Australia, or widen the search to every Australian postcode.